In my opinion, take it for what it is worth, use fishing line, 4-10 lb test, and kind of saw at it (couldn't think of a better way to state it). The line will naturally pull close to the emblem being removed and leave the adhesive on the car. Just make sure the area is clean before doing so. Also I used 3M adhesive remover (spray or bottle); make sure it says it is safe for paint! Apply it, catching the drips with a towel and let it soak for a few minutes. I have seen people use a towel, but I found a thumb and some pressure worked best. After that, just wipe it down, wash the entire car, and wax those areas with Meguiar's Cleaner Wax or equivalent. After that apply the wax of your choice to the entire car, I prefer traditional Meguiars. Again this is just my take and what worked for me now and in the past.
I agree with everyone else, the car looks a lot better without them.
